Update README.md with HF metadata

README.md

@@ -1,3 +1,13 @@
+---
+license: cc-by-4.0
+tags:
+- synthetic
+- emergent communication
+- linguistics
+pretty_name: Emergent Language Corpus Collection
+size_categories:
+- 10M<n<100M
+---
 # ELCC
 
 The Emergent Language Corpus Collection is collection of corpora and metadata
@@ -53,4 +63,4 @@ that they will be empty after you clone the project.  If you would like to
 populate a submodule (i.e., the directory pointing to another repo) to see or
 use its code, run `git submodule init path/to/submodule` to mark it as init-ed.
 Second, run `git submodule update` to populated init-ed submodules.  Run `git
-submodule deinit -f path/to/submodule` to make the submodule empty again.
+submodule deinit -f path/to/submodule` to make the submodule empty again.